| 泥岩盖层浓度封闭演化特征——以松辽盆地下白垩统泥岩为例 |
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| 引用本文： | 付广,吕延防,付晓飞.泥岩盖层浓度封闭演化特征——以松辽盆地下白垩统泥岩为例[J].地质科学,2003,38(2):165-171. |
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| 作者姓名： | 付广 吕延防 付晓飞 |
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| 作者单位： | 大庆石油学院勘探系, 黑龙江安达151400 |
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| 摘 要： | 在研究泥岩盖层浓度封闭机理及形成条件的基础上,提出了抑制和替代两种浓度封闭作用。通过其形成及演化过程分析,研究了不同类型泥岩盖层浓度封闭性的演化特征。通过泥岩盖层浓度封闭形成期与气源岩大量排气期的匹配关系分析,探讨了研究泥岩盖层浓度封闭演化特征的意义。以松辽盆地三肇凹陷下白垩统青山口组和登娄库组二段泥岩盖层为例,研究了其浓度封闭演化特征及其在气藏形成中的作用。
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| 关 键 词： | 泥岩盖层 烃浓度封闭 抑制封闭 替代封闭 |
| 收稿时间： | 2001-08-27 |
| 修稿时间： | 2001年8月27日 |
EVOLUTIONAL STAGES OF HYDROCARBON CONCENTRATION SEAL IN MUDSTONE CAPROCKS |
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| Fu Guang,L&#,Yanfang,Fu Xiaofei.EVOLUTIONAL STAGES OF HYDROCARBON CONCENTRATION SEAL IN MUDSTONE CAPROCKS[J].Chinese Journal of Geology,2003,38(2):165-171. |
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| Authors: | Fu Guang L&# Yanfang Fu Xiaofei |
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| Institution: | Department of Exploration, Daqing Petroleum Institute, Anda, Heilongjiang 151400 |
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| Abstract: | Based on a study of hydrocarbon concentration seal mechanisms and formation conditions of mudstone caprocks, the paper represented the restraining and replacing hydrocarbon concentration seals. By analysing the formation and evolution process of restraining and replacing hydrocarbon concentration seals, the evolution characteristics of hydrocarbon concentration seal in varied mudstone caprocks were studied. By means of the match relation between hydrocarbon concentration seal formation period of mudstone caprocks and the mass expulsion gas period of gas source rocks, the significance was discussed to study the evolution characteristics of hydrocarbon concentration seal. Taking the mudstone caprocks of Early Cretaceous Qingshankou Formation and the Second Member of Denglouku Formation in the Song Liao Basin as an example, the evolution characteristics of hydrocarbon concentration seal and their effect in the formation of gas reservoirs were studied. |
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| Keywords: | Mudstone caprocks Hydrocarbon concentration seal Restraining seal Replacing seal |
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